PRESSURE-TESTING METHOD PERMITS LINE-SEGMENT ISOLATION

12/31/1990
J. M. Lowes Hydra-Lok Ltd. Barrow-in-Furness, U.K. Pressure or leak testing a segment of a pipeline is now possible by use of a pressure-testing tool that isolates a locally disturbed area of the line. The system avoids the potentially expensive alternative of decommissioning an entire length of line for pressure testing. High-pressure pipes and pipelines are essential for hydrocarbon production, processing, and transportation. For safety reasons, procedures need to be established and implemented during construction and maintenance which ensure the continued operation of a plant or pipeline. These procedure...
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